WordPress 3.2 is right around the corner. We do have a small number of WP Engine clients that are on older version of WordPress and strongly urge those of you on old versions of WordPress to upgrade to WordPress 3.1 as soon as possible (we recommend by 7/01/2011). If you have any questions or concerns, please contact support.
Please note, WordPress 3.1 has been made available since it’s release on February 23rd 2011. WordPress 3.2 is due to be available very soon. The information on WordPress 3.1.3 is here